Metallic screen



Aug. 25, 1925.

A. L. OTTO METALLI C SCREEN 2 Shets-Sheet I Original Filed Jan. 21, 1924 ATTORNEY? p z o ggtzmom Aug. 25, 1925. Re, 16,148

A. L. OTTO METALLIC SCREEN Original Filed Jan. 21. 1924 2 Sheets-Sheet 2 IN V EN-TOR: M444, O'flF,

; 1 BY W in is a specification.

Reiasued Aug. 25, 1925 p Re. 16,148 UNIT'ED- STATES- PATENT OFFICE.

I ARTHUR I. OTTO, 0F PHILADELPHIA, PENNSYLVANIA.

METALLIC seamen.

To all {07mm it may concern:

Be it known that .I, ARTHUR L. O'r'ro, a citizen of the United States, residing at Philadelphia, county of Philadelphia, State of Pennsylvania, have invented new and useful Metallic Screens, of which the followy invention consists of certain novel construction in-metallic screens for. windows, doors and the like, whereby ga more serviceable screen may be produced and at a lower cost than has been possiblehereto fore.

' My invention further consists of a novel frame structure whereby extreme strength and rigidity is obtained; as well as novel means for replaceably securing metallic screening to'the frame.

My invention relates particularly to the class of screens having channel shaped frame members, in contradistinction to the class of screens employing solid and bulky frame members'which are less desirable for structural, economic, as well as other I reasons. p

It has been customary heretofore 1n making metallic screenframes, to shape the frame members out of strips of bendable sheet metal; bending the sheet metal back upon itself into various complex cross sectional shapes'ln an effort to obtain a Ilgld. structure.

Due'to the very nature .of the construction :however, no screen frame of any considerable sizefcould be produced sufficiently rigid without the use of some reinforcing means. ,This was particularly noticeable in the case of the mitere-d corner joints, which heretoforehave been soldered along the thin cont-acting edges of the sheet metal, and in addition to the soldered joint, have been braced in some manner. This construction however, gave results not entirely satisfactory, and particularly so in screen frames'of large'propoitions in which case the screen was subject to distortions.

Relevant to these prior screen, structures I am aware of the Watson Patents Numbers'836,475.. 956,239 and 1,03lh694, each one of which sets forth/some form of a screen frame member,: built up of strips of sheet metal to form the desired sha e, and including a tubular space within said shape.

inasmuch, as my frame members are metala fragment of the corner .such as internal or external braces,

Original No. 1,496,594, dated June 3,1924, Serial No. 687,518, filed Tannery 21, 1924. Application for reissue flledliay 5, 1925. Serial 1T0. 28,222.

lic, non-tubular, and substantially nonbendable; they are of simple, unitary form; and to no construction or device of the prior art do I herein make claim.

talities as herein shown and described.

Figure 1 represents a view in elevation of a sliding screen embodying my invention.

Figure 2. represents a section on line 22 of Figure'l.

Figure 3, represents a perspective view of of a screen embodying my invention.

Figure 4, represents "a sectional view of the frame member in the-process of wiring. Figure 5, represents'a view in elevation of a hinged screen embodying my invention.

Figure 6, represents a vertical section on line 6&6, of Figure 5.

Figure 7, represents a horizontal section on line 77 of Figure 5.

Referringto thedrawings:-

My screen comprises a novelframe 1 of double channel shaped members, contain-- ing the guiding channels 2 on theouter edges of the frame and the screen retaining channels 3 on the inner sides or edges of the frame. The double channelframe mem bers of my screen are of an integral piece of metal and substantially non-bendable, which adds greatly to -the rigidity of the completed. frame for any given width of frame members. Due to the solid character and relative thickness of the walls of my frame members, I am enabled to unite the same into an integral frame by any of the known processes of uniting metals, such as welding, brazing, fusing and thelike; thus making any'other corner reinforcing means, clamps and the like, entirely-superfluous; .in sofar .as the intimate union of the frame mem-v V y invention, however is clearly difieren tiatedfrom. this as well as other priorart,

ber provides a joint as strong as any part ofthe' frame members. While Inlay use any of the known structural metals or al loys in making my screen, I prefer to use a. metal or alloy of several metals, which will not be subject to the corrosive action of the elements and at the same time lend -an architectural value to the finished the screen cloth for'the purpose of rewiring; and at the same time provide positive locking means for said screen cloth. I accomplish this end by providing above the screen retaining channel 3, a .continuous Vshaped notch 5, into which I force one edge of a triangular anchor rod or tube '6 after having pressedthe same into the screen retaining channel over the screen cloth.- I

In wiring a frame the screen cloth is cut to the proper size, and is then laid over the frame with its edges overlapping the screenretaining channels. 'The edges arethen secured to the frame members in rotation; by first pressing or rolling the over lapping edge lnto the screen retaining channel. then inserting the anchor rod or tube over the screen cloth, and finally forcing the edge of the anchor into the locking notch; which operation not only secures the screen cloth to the frame, but drawsit-taut when the opposed side is already secured. In order to prevent the cutting of, or other injury to, the screen cloth, along the inner edge of the screen cloth retaining-channel. I round the said inner edge of the screen cloth retaining channel, in a relatively large are, as shown at 15 in Figs. 2, 3, 4, and 7.

.My triangular anchor rod possesses a decided advantage, in so far as it provides a space 7 into which the loose edge of the- -screen cloth canbe forced without tending to dislodge the anchor rod; which can bev either of solid triangular cross-section. or in the shape of wtriangular tube as illustrated in the drawings; In the first instance I avail myself of the elasticity of the walls of the screen retaining channel in forcing the edge of the anchor into the docking notch. The triangular tube designated by numeral 6 in Figs. 2, 3, and 4. is preferred by me however since 'it provides simpler mode of operation; -name1y:the tube, of which one side is originally convex, is hammered into position thereby straightening the convex side and forcingthe locking edge of the triangle into the locking notch. 1 a

My frame structure is adapted to be'made up into sliding, stationary, hinged or other screens. Fig. 1 repasesents'a sliding screen I embodying myinvention, and adapted to slidingly engage the guide strips 8 by means of the outer channels2 and'the fixed bearings 9 and yielding bearings 10 on the two mg the screen frame from between the guide strip as commonly practiced in the art.

-A further advantage of the triangular shape of the anchor rod lies in thefa ct that the space 7 provided thereby, affords a ready means of securing the yielding spring bearings 10 to the inside of the channel 2; by simply insertingthe free endsof the spring through slots notshown in the drawings, provided in the inner wall of the channel 2, into the said space 7.

In Fig. 5 I have shown an adaptation of my invention to hinged screens. in which case I provide a modified form of vertical franie'member as shown in vertical and horizontal cross section in Figs. 6 and 7 respectively. In this modification the outer channel 2 is made with converging sides 11 as shown in Fig. 7 which provide support for the hingepivots 12 and 13: and at the same time afford a better fitting joint between the ably secured within the same,in any suitable manner, as a spring bolt or the like. By this pivotal hinging of the screen the same is readilv attached to. the window iamb. by

simply inserting the upper fixed pivot into a suitable receptacle contained within; the head of the window frame while .the lower pivot 12 is drawn back: and then inserting the lower pivot into a similar receptacle contained within the sill. w

For the purpose of giving the'screen cloth additional support against the lateral thrust exerted upon it. bv the wind or other agencies, I may provide cross frame members .16. as illustrated in Figs. 1, 2, and 5.

It is thus clearly seen fromuthe above description that the screen of mv novel construction embodies a number'of distinct advantages; among them, the extreme strength and resistance of the frame members against any force tending to crush the same, as well as the perfect and intimate unison of the several frame members: resulting in a structure indestructible for all practical purposes, which is a decided improvement over the built-up sheet metal screen frame heretofore in use, which is subject to indentations and crushing due'to external forces. My construction moreover being stronger and more rigid, will permit the use of narrower frame members. thus excluding less light and air when in position,- and being of neater design and less conspicuous. 'The general appearance of the completed. screen is further enhanced by the fact that no joints v are'visible.

- The solid metal, open channel construction possesses the further advantages that some of the metal of the outer, channel may be removed without' materially impairing themigidity of the frame. Thls is of particular utility when small adjustments in size of the finished frame are necessary to correct for errors in measurement, as well as in cases where parts of the frame must be cut away to clear obstructions on the sill, such as shutter fastenersf Having thus described my invention wha I claim as new and desire to secure by Letters Patent is channels to receive guide strips and inner screen retaining channels to receive the edges of a screen fabric and a screen fabric retaining anchor member.

2. In ametallic screen, a frame formed from double channelled integral metal rails and stiles integrally united .by mitred joints and a single integral web common to the channels of each rail and stile.

3. In metallic screens, a frame composed of double channelled integral frame members, one of said frame members having the sides of its outer channel convergent; screen cloth covering said frame; anchormembers within the inner channels locking the over lapping edges of the screen cloth to the said inner or screen retaining channels; and hinge pivots inserted into the terminals of therein by the converging sides of the outer channel thereof.

4. In a metallic screen, an integral, and non-tubular frame, having an inner screen retaining channel along the inner; peripheral edge of one face thereof, screen cloth extending over said frame and having its edges extending into said channel, and a screen clothretaining anchor member in said channel.

5. A metallic screen frame formed of douintegrally united and a single integral web common to the two channels of each rail and 1. In a metallic screen, anintegral, nontubular metal frame having outer guide one of said frame members and secured ble channelled integral metal rails and stiles,

cloth extending oversaid frame and having H its edges extending into said channel and a screen cloth retaining anchor member in said channel.

7 In a metallic screen, a frame, a screen retaining'channel in one face of said frame, a locking notch in one wall of said channel extending longitudinally thereof, and, a tubular and substantiallytriangular screen cloth anchor member having one wall thereof convened outwardly, said anchor member adapted to be inserted into said channel and to have one apex thereof forced into said'notch by bending said convexed wall of the anchor member into a plane, thereby securely to lock said anchor member "within said channel.

8. In a metallic screema frame, a screen retaining channel in one face of said frame,

a tubular and substantially triangular screen cloth anchor member having a wall thereof convexed outwardly, said anchor member adapted to be inserted into said channel over the overhanging edges of a screen cloth with the convexed wall of said anchor member extending across the top of the channel, and means carried by one Wall of said channel for engaging and interlocking with an apex of said trian ular anchor member, said convexed Wall of said anchor member being adapted to be bent back into a plane thereby to force said apex of said anchor member into interlocking engagement with said means, thereby securel to lock said anchor member within said 0 annel.

ARTHUR L. OTTO. 

